Door fastener



y 1934- P. A. BALLWANZ El AL 9 OOOOOOOOOO ER y 1934- P. A. BALLWANZ ETAL ,0

DOOR FASTENER Filed April 20, 1932 2 Sheets-Sheet 2 7 7 15 2 6725378YWMW Patented May 8, 1934 PATENT; OFFICE DOOR FASTENER Paul A.

Ballwanz, Harry Hen'drickson, and

Richard 3. Jesse, Chicago, 111.; said Jesse assignor to said Ballwanzand said Hendrickson Application April 20, 1932,v Serial No. 606,304

7 Claims.

The present invention relates generally to fasteners for doors. Moreparticularly, the invention relates to that type of door fastener whichis adapted to supplement the regular lock in looking the door in itsclosed position, and to form a check or stop for restricting opening ofthe door, and comprises (1) a bracket which is adapted to be attached tothe central part of one of the side members of the door frame; (2) alock-member which is adapted to be attached to the door in closeproximity to the regular door lock; and (3) an arm which is pivoted tothe bracket, is adapted when the door is in its closed position to beswung across and locked to the door-member for 5 door locking purposesand has sliding contact with the lock-member so as to permit the door tobe opened to a limited extent upon release of the arm from its lockedopsition with respect to the lock-member.

One object of the invention is to provide a door fastener of this typewhich is an improvement upon and may be manufactured at a lower costthan previously designed fasteners of the same general character, byvirtue of the fact that the bracket, arm and lock-member are all formedof metal stampings and are so constructed that they are exceedinglystrong and well reinforced.

Another object of the invention is to provide a door fastener of thetype under consideration in 39 which the bracket is formed from arectangular piece of sheet metal and has the central portion thereof cutand stamped in a novel manner to form a pivot lug, and the arm is formedfrom a sheet metal strip and is centrally deflected and shaped so as toform at one end a pair of laterally spaced ears which lap the pivot lugand are connected to the latter by a stud or rivet so as to form apivotal connection between the lug and arm. I

Another object of theinvention is to provide a door fastener of the lastmentioned character in which the side margins of the arm coact with apair of inwardly extending tongues on the lockmember to form the slidingconnection between the arm and the lock-member, and the outer or distalend of the arm is bent into tubular form so as to form an abutment forlimiting outward sliding movement of the member relatively to the arm.

A further object of the invention islto provide a door fastener of theaforementioned type and character in which the lock-member embodiesnovel means for locking the arm thereto when the door is in its closedposition, and is shaped and constructed so that it cannot be movedvertically with respect to the arm when the latter is in its lockedposition.

A still further object of the invention is to provide a door fastenerwhich is generally of new and improved construction and in which case ofac- 6 tion is combined with durability of construction.

Other objects of the invention and the various advantages andcharacteristics of the present fastener construction will be apparentfrom a considerationof the following detailed description.

The invention consists in the several novel features which arehereinafter set forth and are more particularly defined by the claims atthe conclusion hereof.

In the drawings which accompany and form a part of this specification ordisclosure and in which like numerals of reference denote correspondingparts throughout the several views:

Figure 1 is a perspective showing a fastener embodying the inventionapplied to a door, and the arm of the fastener in its locked position,that is, the position wherein it supplements the regular door lock inlooking the door in its closed position; V

Figure 2 is a perspective showing the fastener in the position whereinthe arm coacts with the lock-member to limit or restrict opening of thedoor;

Figure 3 is a perspective of the arm which is connected pivotally to thebracket;

Figure 4 is a perspective of the bracket, illustrating the manner inwhich the central portion of the bracket is stamped and deflected toform the pivot lug for the arm;

Figure 5 isa perspective of the lock-member, showing the twolatch-elements which constitute the means for locking the arm to thelock-member;

Figure 6 is a perspective of the two latch-elements;

' Figure '7 is a vertical section of the lock-member, exhibiting themanner in which the two tongues coact with the side members of the armto form a sliding connection between the arm and the lock-member; and

- Figure 8 is a transverse section of the lockmember, showing thearrangement of the latchelements and the manner in which the latter gripthe side margins of the arm so as to hold the arm in locked relationwith respect to the lock- 105 member.

The fastener which forms the subject matter of the invention is adaptedprimarily for use in connection with a door D and operates tosupplementthe regular door look (not shown) in lock- 110 are practicallycontiguous.

ing the door in its closed position, and to limit opening of the doorwhen the latter is unlocked. The door D is illustrated in the drawingsas being of conventional construction and is mounted within a frame D soas to swing horizontally on a vertical axis. The fastener is preferablypositioned above the door knobfnot shown) and the regular lock, andconsists of a bracket 9, an arm and a lock-member 11. All of these threeparts are formed of sheet metal stampings in order to reduce to aminimum the cost of manufacture.

The bracket 9 consists of a rectangular sheet metal plate 12 which issecured to the door frame D by means of screws 13. The latter extendthrough holes 14 in the corners of the plate and serve to clamp thebracket firmly against the inner face of the door frame D. The sidemargins of the plate 12 are cut away as at 15, so as.

to form a comparatively narrow neck in the central portion of the plate.This neck is bent centrally and at the junctures with the endparts ofthe plate, so as to form a pivot lug 16 which consists of a pair ofvertically spaced walls 17 and an outer connecting wall 18. The walls 17extend at right angles to the end parts of the plate and embody a pairof vertically aligned holes 19, as shown in Figure 4 of the drawings.The intermediate wall 18 is shaped so that it is substantiallysemi-circular in conformation and serves to space apart the walls 1'7.In forming the pivot lug, the end parts of the plate are shiftedtogether so that the inner edges thereof By utilizing stamped sheetmetal in the fabrication or formation of the bracket, the cost of makingthe bracket is reduced to a minimum and the bracket is exceedingly rigidand well reinforced.

The arm 10 is adapted, as hereinafter described, to be swungacross andlocked to the lock-member 11 when it is desired to lock the door in itsclosed position, and has a sliding connection with the lock-member so asto permit the door to be opened to a limited extent. It is formed of astrip 20 of sheet metal. This strip is centrally and longitudinallydeflected or stamped so as to form a pair of vertically spaced walls 21and an intermediate wall 22. These walls form an open-sided channel 23in the central portion of the arm and operate to reinforce the arm sothat it is well adapted for the use to which it is put. At one end ofthe strip, the walls 21 are shaped to form a pair of ears 24 which lapthe walls 1'7 of the pivot lug 16 and are connected pivotally to thebracket by means of a rivet or stud 25. The latter, as shown in Figures1 and 2 of the drawings, extends through the ears 24 and is confined inthe holes 19 in the walls '17 of the pivot lug. At the other end of thestrip, the walls 21 are somewhat tapered in form and merge with the sidemargins of the strip. The intermediate wall 22 is arcuate in cross sec--tion and serves to space apart the walls 21. At the distal or outer endof the arm, the strip 20 is bent into tubular form so as to form asubstantially cylindrical abutment 26. This abutment is adapted, as:hereinafter described, to limit sliding movement of the lock-member. Theends of'the side margins of the strip that are opposite the ears 24 arecut away so that the side margins terminate substantially midway betweenthe central portion of the bracket and the inner or pivoted end. Thebracket 9 is adapted to be attached to the door frame D so that the arm10 extends substantially horizontally and may be swung across the doorD, as shown in Figure l.

The lock-member 11 is formed from a substantially rectangular plate 2'7of sheet metal. This plate is stamped or bent so as to form a front wall28, a top wall 29, a bottom wall and a pair of flanges 31. The flanges31 project outwardly from the top and bottom walls and are arranged sothat they are substantially coplanar. The lock-member 11 is adapted tobe secured to the door D at a point directly opposite the bracket 9, andis preferably secured in place by means of screws 32. The latter extendthrough holes 33 in the flanges 31 and serve to clamp the lockmemberagainst the inner face of the door. The walls 29 and 30 define with thefront wall 28 an open-ended compartment 34 and operate to space thefront wall a sufiicient distance from the front face of the door D sothat it is substantially coplanar or aligned with the bracket 9 when thedoor is in its closed position. When the door is in this position, thearm 10 is adapted to be swung across the front wall 28 of the bracket,as shown in Figure 1. In order to effect a sliding connection betweenthe lock-member 11 and the bracket 9, the end of the front wall 28nearest the bracket is shaped to form a pair of oppositely facingtongues 35. These tongues are spaced from the adjacent end edge of thefront wall and form therewith a pair of slideways 36 for the sidemargins of the arm 10. When the door D is closed and the arm 10 is swungacross the front wall 28 of the lock-member, the inner ends of the sidemargins of the arm are positioned opposite the slideways 36. Uponinitial opening of the door, the lock-member 11 which is swung away fromthe bracket 9 shifts the arm 10 into a position wherein the inner endsof the side margins of the arm are within the slideways 36. As the dooris opened further, the lock-memoer slides towards the outer or distalend of the arm until it is arrested by engagement of the front wall 28with the abutment 26. In this position of the lock-member, the door D isheld against further opening thereof. When it is desired to open thedoor D to its fullest extent, the door is first closed in order to bringthe lockmember 11 opposite the bracket 9 and efiect withdrawal of theside margins of the arm 10 from the slideways 36. Thereafter, the arm-10 is swung clear of thedoor so as to permit the latter to be openedwithout interference from the arm. The tongues 35 are positioned so thatthey eX- tend slightly outwardly of the front wall 28 of thelock-member. By arranging the tongues in this manner, the inner ends ofthe side margins of the arm 10 may enter the slideways 36 withoutinterference.

In order to lock the arm 10 against the lockmember 11 so as to securethe door D in its closed position, a pair of latch-elements 3'7 and 38are provided. 'These elements are formed of sheet metal stampings andare disposed at the end of the lock-member that is opposite to thetongues 35. The latch-element 3'7 is mounted for vertical slidingmovement in a pair of vertically aligned slots 39 in the top and bottomwalls of the lock-member, and embodies at its lower end a hook 37 forengagement with the lower side margin of the arm 10. The latchelement 38fits against the latch-element 3'7 and is slidable vertically in theslots 39. The upper end of the element 38 is provided with a hook 33which is adapted'to engage and grip the upper side margin of the arm 10.A spring 40 its is applied to the latch-elements in such amanner thatthe hooks are urged towards one another into hooked relation with theside margins of arm. This spring is housed. within the cornpartment 34,embodies a pair of arms or and is anchored or attached to a tongue 42which is struck inwardly from, and is formedintegrally with the frontwall 28 of the lock-member. The arms 41 of the spring extend alongsideof the inner face of the front wall 28 and extend through longitudinalslots 43 in the central portions of the latch-elements. The spring isconstructed so that the arms 41 spring outwardly or away from oneanother and thus urge the latch-members into hooked relation with theside margins of the arm. The upper end of the latch-element's"? and thelower end of the latch" element 38 are extended so that they may bemanipulated in order to shift apart the hooks when it is desired torelease the arm from the latch-elements. To facilitate locking of thearm if) to the lock-member, the outer parts of the hooks 37 and 38 areprovided with inclined sur faces is. These surfaces are adapted to beengaged by the side margins of the arm 10 and operate in response toshift of the against the front wall or" the lock-member, to separate thehooks 37 and 38 for entry of the side mar gins of the arm within thehooks. when the arm 10 is swung against the front wall the side marginsof the arm strike against the inclined surfaces 44 and force the hooksapart until they snap over the side margins of the arm and lock the armin place. To release the arm, the latch-element 37 is depressed and thelatch-element 38 is raised so as to free the hooks the side margins ofthe arm.

In order to prevent vertical movement of the lock-member relatively tothe arm when the arm is in its locked position and thus reduce the possibility of releasing the from the lock-member by springing the door D,the top and bottom por tions of the front wall 28 of the lock-member areshaped so as to form horizontal ribs 45. These ribs, as shown in Figure'7, engage and lap the side edges of the arm 10 when the latter islocked in place against the lock-member by the lockelements 37 and 38.To assist the ribs in holding the look-member against vertical movementwith respect to the arm, the front wall 28 of the lockmember is providedwith a lug 46. This lug is formed integrally with and extends at rightangles to the front wall 28, and fits within the channel 23 in the armwhen the arm is locked to the lock member if.

The herein described door fastener may be produced at an extremely lowcost by virtue of the fact that it consists for the most part, of sheetmetal stampings. It is exceedingly efficient in operation and requiresno manipulation to lock it other than shift of the arm 10 against thefront wall of the look-member. This is attributable to the fact that thelatch-elements automatically snap into their operative position inresponse to action of the side margins of the arm upon the inclinedsurfaces 44. 1

The invention is not to be understood restricted to the details setforth, since these may be modified within the scope of the appendedclaims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we claim as new and desire tosecure by Letters Patent, is:

1. A door fastener of the character described,

comprising in combination a bracket for the door frame provided with ahorizontal pivot lug, an arm stamped from a strip of sheet metal andhaving one end thereof bent laterally into tubular formation to form anabutment and its central portion deflected longitudinally and shaped sothat it is of channel formation and embodies at the other end of the arma pair of vertically spaced ears'extending beyond the side margins ofthe arm, said ears being arranged to straddle the lug and having apivotal connection therewith in order to permit the arm to swinghorizontally, and a lock-member for the door provided with means adaptedto engage and slide upon the side margins of the arm in response toopening of the door and having a part adapted to engage the abutment andto coact therewith to limit opening of the door.

A door fast of the character described,

compring in combination a bracket for the door frame provided with apivot lug, an arm having one end "thereof c feet-ed pivotally to the lugfor horizontal swinging movement, a lock-memher for the door havingmeans for engaging the arm slidably in order to form a connectionwhereby opening of th door is limited, and adapted when the door is inclosed position to have the rm swung thereag st, a latch-element forlocking the arm to the member for door-locking purposes card by the10-Cl il8l er so that it is vertically shdable and provided with ahooked part for engaging one of the side margins of the and a springapplied to the element for s ting the latter vertically into hookedrelation with said one side margin of the arm.

3. A door fastener of the character described, comprising in combinationa bracket for the door frame provided with a pivot lug, an arm havingone end thereof connected pivotally to the lug for horizontal swinging,movement, a lock-member for the door having means for engaging the armslidably in order'to form a connectionwhereby opening of the door islimited, adapted when the door is in its closed position to have the armswung thereagainst, a pair of elongated, vertically extendinglatch-elements for locking the arm to the member for door-lockingpurposes, carried by the lock-member in side-by-side relation and sothat they are slidable vertically, one of the latch elements beingprovided at its upper end with a hooked part for engaging the top marginof the arm and the other element being provided at its lower end with ahooked part for engaging the lower side margin of said arm, and springmeans applied to said latch elements so as to urge the hooked parts intoengagement with the side margins of the arm, the ends of the latchelements without the hooks being arranged and extended with respect tothe lock-member so that they may be manipulated in order to shift theelements out of their hooked position and thus release the arm.

a. A door fastener of the character described, comprising in combinationa bracket for the door frame provided with a horizontal pivot lug, an

arm having one end thereof connected pivotally to the luv for iorizontalswinging movement, a lock-member for the door having means for engagingthe arm slidably in order to form a connection whereby opening of thedoor is limited,

and stamped from a plate of sheet metal so that it comprises a frontwall and top and bottom walls for spacing the front wall from the door,

said lock-member being adapted to have the arm swung against the frontwall thereof when the door is in its closed position, and alatch-element for locking the arm to the member for door-lockingpurposes, extending between and mounted for vertical sliding movement inslots in the top and bottom walls and provided with a hooked part at oneend thereof for gripping or engaging one of the side margins of the arm.

5. A door fastener of the character described, comprising in combinationa bracket for the door frame provided with a horizontal pivot lug, anarm having one end thereof connected pivotally to the lug for horizontalswinging movement, a lock-member for the door having means for engagingthe'arm slidably in order to form a connection whereby opening of thedoor is limited, and stamped from a plate of sheet metal so that itcomprises a front wall and top and bottom walls for spacing the frontwall from the door, said lock-member being adapted to have the arm swungagainst the front wall thereof when the door is in its closed position,a pair of elongated, vertically extending latch-elements for locking thearm to the member for door-locking purposes, mounted in slots in the topand bottom walls to slide vertically to and from one another, one ofsaid latch elements being provided at its upper end with a hooked partfor engaging the upper side margin of the arm and the other elementbeing provided at its lower end With a hooked part for engaging thelower side margin of the arm, and a spring positioned Within the spacebetween said top and bottom walls for shifting the latch-elementstowards one another in order to bring the hooked parts into engagementwith the side margins of the arm, the ends of the latch-elements withoutthe hooks being arranged so that they project through the slots andoutwardly .of the lock-member in order that they may be manipulated torelease the latchelements from the arm.

6. A door fastener of the character described, comprising in combinationa bracket for the door frame provided with a horizontal pivot lug, anarm having one end thereof connected pivotally to the lug for horizontalswinging movement and embodying a longitudinal channel in the centralportion thereof, a lock-member for the door having means for engagingthe arm slidably in order to form a connection whereby opening of thedoor is limited and adapted, when the door is in its closed position, tohave the arm swung and locked thereagainst, and a lug on the lock-memberarranged to enter the channel in the arm and lock the lock-memberagainst vertical movement with respect to the arm when the arm is swungagainst the lock-member.

7. A door fastener of the character described, comprising in combinationa bracket for the door frame provided with a pivot lug, an arm havingone end thereof connected to the lug for horizontal swinging movement, alock-member for the door having means for engaging the arm slidably inorder to form a connection whereby opening of the door is limited, saidlock-member being stamped from a plate of sheet metal so that itcomprises a front wall and top and bottom walls for spacing the frontwall from the door, said lock-member also being adapted to have the armswung against the front wall thereof when the door is in its closedposition and having the portions thereof at the junctures of the frontwall with the top and bottom walls deflected outwardly to form a pair ofhorizontally extending ribs for engaging the side margins of the arm andholding the lock-member against vertical movement with respect to thearm when the arm is swung against said lock-member, and a latch elementon the lock-member for locking the arm to said member for door-lockingpurposes.

PAUL A. BALLWANZ. HARRY HENDRICKSON. RICHARD J. JESSE.

